This game is the first in a series of games that require you to juggle two or more tasks at the same time. In this case, you need to dodge the moving shapes with your mouse cursor, while also entering in numbers on your keyboard.
These multi-tasking games will challenge your ability to handle more than one task at the same time. These are great practice for juggling multiple activities, especially computing ones.
The object of this multi-tasking game is to keep track of the balls in the different windows and prevent them from hitting the edge of the screen. You need to simultaneously manage four or more windows and switch back and forth between them redirecting the moving balls.